Morphological characters of Spiradiclis longanensis. A Habit B Flowering branch, showing the position of inflorescence C Vegetative branch, showing the linear stipules, hairy leaves and venation pattern D Hairy stems, petioles, and stipules E Hairy young infructescence, showing the linear bracts and calyx lobes F, G Longitudinally dissected long- and short-styled flower, respectively, showing the positions of anthers and styles H infructescence, showing the dehiscent mature capsules I Capsule valves in adaxial (up) and abaxial sides (low), showing the dehiscence pattern J Seeds in adaxial (up) and abaxial sides (low) under stereoscope, showing the hilum and papillate surface K, L, M Morphology of adaxial, abaxial leaf epidermis, and stomatal apparatus under SEM, respectively (from R.J. Wang & Q. Liao 2592). Photos by Ruijiang Wang.